EP 1399723 A1 20040324 - PRESSURE TRANSMITTING DEVICE WITH FORECASTING CORROSION MONITORING
Title (en)
PRESSURE TRANSMITTING DEVICE WITH FORECASTING CORROSION MONITORING
Title (de)
DRUCKÜBERTRAGUNGSVORRICHTUNG MIT VORAUSSCHAUENDER KORROSIONSÜBERWACHUNG
Title (fr)
DISPOSITIF DE TRANSMISSION DE PRESSION AVEC SURVEILLANCE PREVISIONNELLE DE LA CORROSION
Publication
Application
Priority
- DE 10131405 A 20010628
- EP 0206736 W 20020619
Abstract (en)
[origin: US7131335B2] A pressure transmitter for transfer of a pressure prevailing in a first medium onto a second medium, including a pressure chamber 4 in a platform 1 , which chamber is separated from the first medium by means of a dividing membrane 2 , wherein the pressure can be transferred by means of the second medium to a pressure measurement cell. For timely recognition of an impending failure of the dividing membrane, an early warning detector is provided with a sensor chamber 6 having an opening, which faces the first medium; and a sensor 7 , which monitors a property of a medium container in the sensor chamber; and a barrier facing the first medium, pressure-tightly sealing the opening, and which, under contact with the first medium and equal conditions as experienced by the dividing membrane 2 , fails earlier than the dividing membrane, thus making possible a flow connection between the sensor chamber 6 and the first medium. Preferably, the barrier is in the form of a sacrificial membrane 5 , which is thinner than the dividing membrane. In this way, it is to be expected that, under corrosive destruction of the membranes, the sacrificial membrane 5 will be destroyed earlier than the dividing membrane 2.
IPC 1-7
IPC 8 full level
G01L 1/00 (2006.01); G01L 19/06 (2006.01)
CPC (source: EP US)
G01L 19/0645 (2013.01 - EP US); G01L 19/0672 (2013.01 - EP US); G01M 3/16 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 03002969 A1 20030109; AT E454615 T1 20100115; CN 1268907 C 20060809; CN 1522434 A 20040818; DE 10131405 A1 20030313; DE 50214147 D1 20100225; EP 1399723 A1 20040324; EP 1399723 B1 20100106; JP 2004530910 A 20041007; RU 2004102209 A 20050410; RU 2271524 C2 20060310; US 2004234382 A1 20041125; US 7131335 B2 20061107
DOCDB simple family (application)
EP 0206736 W 20020619; AT 02760188 T 20020619; CN 02813004 A 20020619; DE 10131405 A 20010628; DE 50214147 T 20020619; EP 02760188 A 20020619; JP 2003508907 A 20020619; RU 2004102209 A 20020619; US 48140404 A 20040609